MAX7490CEE+T Maxim Integrated Products, MAX7490CEE+T Datasheet - Page 6

• Manufacturer Part Number: MAX7490CEE+T
• Description: IC FILTER SW CAP DUAL 16-QSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX7490CEE+T

• Filter Type: Universal Switched Capacitor
• Frequency - Cutoff Or Center: 40kHz
• Number Of Filters: 2
• Max-order: 2nd
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Dual Universal Switched-Capacitor Filters
6
(V
R2 = 10kΩ, Q = 5, T
DD
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
_______________________________________________________________________________________
-0.5
-1.0
-1.5
-2.0
0.2
0.1
2.0
1.5
1.0
0.5
4.0
3.9
3.8
3.7
3.6
3.5
3.4
3.3
3.2
3.1
3.0
= +5V for MAX7490, V
0
0
-40
3.0
0
SUPPLY CURRENT vs. SUPPLY VOLTAGE
Q DEVIATION vs. TEMPERATURE
CLOCK-TO-CENTER FREQUENCY
20
-15
3.5
DEVIATION vs. Q
TEMPERATURE (°C)
A
40
4.0
10
= +25°C, unless otherwise noted.)
V
DD
f
Q
CLK
V
(V)
DD
= 3MHz
60
4.5
DD
35
f
= 3V
CLK
f
CLK
= +3V for MAX7491, f
V
= 2kHz
DD
= 625kHz
= 5V
80
5.0
60
100
5.5
85
-0.1
-0.2
-0.3
-0.5
-0.6
-0.7
Typical Operating Characteristics (continued)
-0.4
3.41
3.40
3.39
3.38
3.37
3.36
3.35
3.34
3.33
3.32
500
450
400
350
300
250
200
150
100
0.7
0.6
0.5
0.4
0.3
0.2
0.1
50
0
0
CLK
-40
3.0
SUPPLY CURRENT vs. SUPPLY VOLTAGE
0
= 625kHz, V
CLOCK-TO-CENTER FREQUENCY
DEVIATION vs. TEMPERATURE
-15
3.5
20
TEMPERATURE (°C)
NOISE vs. Q
4.0
10
40
+85°C
V
SHDN
DD
Q
(V)
-40°C
35
4.5
60
= V
+25°C
EXTCLK
5.0
60
80
100
= V
85
5.5
DD
, COM = V
-100
-110
-120
-40
-20
-30
-50
-60
-70
-80
-90
-4
-5
3.7
3.6
3.5
3.4
3.3
3.2
3.1
3.0
-1
-2
-3
-6
1
0
100
-40
1k
SUPPLY CURRENT vs. TEMPERATURE
A = MODE 1
B = MODE 3
Q DEVIATION vs. CLOCK FREQUENCY
DD
THD + NOISE vs. FREQUENCY
-15
/2, Mode 1, R3 = R1 = 50kΩ,
V
DD
INPUT FREQUENCY (Hz)
TEMPERATURE (°C)
V
= 5V
DD
10
MAX7491
V
= 3V
f
DD
CLK
1000
= 3V
(kHz)
V
DD
35
= 5V
B
A
60
10,000
10k
85